This is a really awesome book series by Nora Roberts. It's about these 6 people who are brought together through time to save the world fro the Evil Vampire Queen Lilith. There is Hoyt the Sorcerer, Glenna the Witch, Cian the Vampire, Moira the Archer, Larkin the Shape-shifter, and Blain, the Warrior (and a direct descendant of Hoyt and Cian since they are brothers.)